//导入vue
import { createApp } from 'vue'
//导入APP组件 ./代表src路径
import App from './App.vue'
//把App组件挂载到 #app作用域
createApp(App).mount('#app')
/**
 * .vue    =   .java
 * node.js =   javac(java的编译器)
 * html    =   .class 
 * import  =   import
 *  
 * import { createApp } from 'vue' 编译成 
 * <script src="https://cdn.jsdelivr.net/npm/vue@版本/dist/vue.js"></script>
 */
